In cell culture biology, confluence is the term commonly used as an estimate of the number of adherent cells in a culture dish or a flask, referring to the proportion of the surface which is covered by cells.or example, 50 percent confluence means roughly half of the surface is covered and there is still room for cells to grow. 100 percent confluence means the surface is completely covered by the cells, and no more room is left for the cells to grow as a monolayer.
One of the few external rigid points on the GZ-20âs envelope, it holds the battens, attachments for the nose lines and the mooring spindle. 2. Material. The largest component of the Blimp, the GZ-20âs envelope is made of two-ply, neoprene-impregnated polyester fabric. 3. Ballonet. Located in the forward and aft of the envelope, these air bags allow the pilot to regulate the amount of helium in the Blimp and statically trim the ship in a nose-up or nose-down situation.
A Goodyear blimp, near Manchester, England, evening of 30 April 2012. According to the Goodyear website, the two active GZ-20 blimps are 192 feet (58 meters) long, 59.5 feet (18 meters) tall, and 50 feet (15 meters) wide.hat is, over four times as long and over twice as wide as the current Goodyear blimps. The largest blimp ever made by Goodyear was the U.S. Navy 's ZPG-3, at 403 feet (121 meters) in length.